Balancing equations worksheet Flashcards
1
Q
Balance: N_2 + H_2 -> NH_3
A
N_2 + 3H_2 -> 2NH_3
2
Q
Na_3PO_4 + KOH -> NaOH + K_3PO_4
A
Na_3PO_4 + 3KOH -> 3NaOH + K_3PO_4
3
Q
Balance P_4 + O_2 -> P_2O_3
A
P_4 + 2(O_3) -> 2(P_2O_3)
4
Q
Balance NH_3 + H_2SO_4 -> (NH_4)_2 SO_4
A
2(NH_3) + H_2SO_4 -> (NH_4)_2 SO_4
5
Q
Balance Al + HCl -> H_2 + AlCl_3
A
2Al + 6HCl -> 3H_2 + 2AlCl_3
6
Q
What is an exothermic reaction?
A
A reaction where more energy is released than absorbed in the reaction
7
Q
What is an endothermic reaction
A
A reaction where less energy is released than absorbed in the reaction
8
Q
What is the activation energy?
A
the energy that is required to initiate the reaction
